1 ; RUN: llc -mtriple=i386-apple-darwin9 -mcpu=corei7 -fast-isel=false -O0 < %s | FileCheck %s
3 ; Gather non-machine specific tests for the transformations in
4 ; CodeGen/SelectionDAG/TargetLowering. Currently, these
5 ; can't be tested easily by checking the SDNodes that are
6 ; the data structures that these transformations act on.
7 ; Therefore, use X86 assembler output to check against.
9 ; rdar://11195364 A problem with the transformation:
10 ; If all of the demanded bits on one side are known, and all of the set
11 ; bits on that side are also known to be set on the other side, turn this
12 ; into an AND, as we know the bits will be cleared.
13 ; The known set (one) bits for the arguments %xor1 are not the same, so the
14 ; transformation should not occur
15 define void @foo(i32 %i32In1, i32 %i32In2, i32 %i32In3, i32 %i32In4,
16 i32 %i32In5, i32 %i32In6, ptr %i32StarOut, i1 %i1In1,
17 ptr %i32SelOut) nounwind {
18 %and3 = and i32 %i32In1, 1362779777
19 %or2 = or i32 %i32In2, %i32In3
20 %and2 = and i32 %or2, 1362779777
21 %xor3 = xor i32 %and3, %and2
23 %shl1 = shl i32 %xor3, %i32In4
24 %sub1 = sub i32 %or2, %shl1
25 %add1 = add i32 %sub1, %i32In5
26 %and1 = and i32 %add1, 1
27 %xor2 = xor i32 %and1, 1
28 %or1 = or i32 %xor2, 364806994 ;0x15BE8352
29 ; CHECK-NOT: andl $96239955
30 %xor1 = xor i32 %or1, 268567040 ;0x10020200
31 ; force an output so not DCE'd
32 store i32 %xor1, ptr %i32StarOut
33 ; force not fast isel by using a select
34 %i32SelVal = select i1 %i1In1, i32 %i32In1, i32 %xor1
35 store i32 %i32SelVal, ptr %i32SelOut